| | 2020-12-31 | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 |
| Amortization Cash Flow | | 23900000.0 | 30900000.0 | 60500000.0 | 120000000.0 |
| Amortization Of Intangibles | | 23900000.0 | 30900000.0 | 60500000.0 | 120000000.0 |
| Beginning Cash Position | | 2835000000.0 | 2643300000.0 | 3151200000.0 | 3421400000.0 |
| Capital Expenditure | | -63700000.0 | -94500000.0 | -114400000.0 | -109600000.0 |
| Capital Expenditure Reported | | -63700000.0 | -94500000.0 | -114400000.0 | -109600000.0 |
| Cash Flow From Continuing Financing Activities | | 491900000.0 | 764600000.0 | 242000000.0 | 59600000.0 |
| Cash Flow From Continuing Investing Activities | | -711100000.0 | -342500000.0 | -202800000.0 | -471900000.0 |
| Cash Flow From Continuing Operating Activities | | 48800000.0 | 132600000.0 | 219500000.0 | 281100000.0 |
| Change In Account Payable | | 9300000.0 | -200000.0 | 9300000.0 | 15700000.0 |
| Change In Accrued Expense | 0.0 | 400000.0 | 200000.0 | | |
| Change In Income Tax Payable | | 400000.0 | 7500000.0 | -4700000.0 | -3600000.0 |
| Change In Interest Payable | 0.0 | 400000.0 | 200000.0 | | |
| Change In Other Working Capital | | -3600000.0 | 1500000.0 | -59000000.0 | -66800000.0 |
| Change In Payable | | 9700000.0 | 7300000.0 | 4600000.0 | 12100000.0 |
| Change In Payables And Accrued Expense | | 9700000.0 | 7300000.0 | 4600000.0 | 12100000.0 |
| Change In Prepaid Assets | | -12300000.0 | -11400000.0 | -22100000.0 | -3300000.0 |
| Change In Receivables | | -34800000.0 | -39500000.0 | -48300000.0 | -48000000.0 |
| Change In Tax Payable | | 400000.0 | 7500000.0 | -4700000.0 | -3600000.0 |
| Change In Working Capital | | -41000000.0 | -42100000.0 | -124800000.0 | -106000000.0 |
| Changes In Cash | | -170400000.0 | 554700000.0 | 258700000.0 | -131200000.0 |
| Common Stock Payments | | | 0.0 | 0.0 | -36100000.0 |
| Deferred Income Tax | | -38500000.0 | -1700000.0 | 4100000.0 | -34100000.0 |
| Deferred Tax | | -38500000.0 | -1700000.0 | 4100000.0 | -34100000.0 |
| Depreciation | | 53600000.0 | 58100000.0 | 72000000.0 | 89800000.0 |
| Depreciation Amortization Depletion | | 77500000.0 | 89000000.0 | 132500000.0 | 209800000.0 |
| Depreciation And Amortization | | 77500000.0 | 89000000.0 | 132500000.0 | 209800000.0 |
| Effect Of Exchange Rate Changes | | -21300000.0 | -46800000.0 | 11500000.0 | -36300000.0 |
| End Cash Position | | 2643300000.0 | 3151200000.0 | 3421400000.0 | 3253900000.0 |
| Financing Cash Flow | | 491900000.0 | 764600000.0 | 242000000.0 | 59600000.0 |
| Free Cash Flow | | -14900000.0 | 38100000.0 | 105100000.0 | 171500000.0 |
| Income Tax Paid Supplemental Data | | 33400000.0 | 17600000.0 | 43000000.0 | 56400000.0 |
| Interest Paid Supplemental Data | | 19100000.0 | 30100000.0 | 52400000.0 | 45300000.0 |
| Investing Cash Flow | | -711100000.0 | -342500000.0 | -202800000.0 | -471900000.0 |
| Issuance Of Debt | | 856800000.0 | 0.0 | 0.0 | 650000000.0 |
| Long Term Debt Issuance | | 856800000.0 | 0.0 | 0.0 | 650000000.0 |
| Long Term Debt Payments | | -302800000.0 | -8400000.0 | -7900000.0 | -648300000.0 |
| Net Business Purchase And Sale | | -409500000.0 | 0.0 | 0.0 | -173100000.0 |
| Net Common Stock Issuance | | | 0.0 | 0.0 | -36100000.0 |
| Net Income From Continuing Operations | | -75400000.0 | -73400000.0 | 54800000.0 | 18100000.0 |
| Net Intangibles Purchase And Sale | -41700000.0 | | | | |
| Net Investment Purchase And Sale | | -275800000.0 | -248000000.0 | -87400000.0 | -189200000.0 |
| Net Issuance Payments Of Debt | | 554000000.0 | -8400000.0 | -7900000.0 | 1700000.0 |
| Net Long Term Debt Issuance | | 554000000.0 | -8400000.0 | -7900000.0 | 1700000.0 |
| Net Other Financing Charges | | -157500000.0 | 734600000.0 | 200900000.0 | 37400000.0 |
| Net Other Investing Changes | | 37900000.0 | | -1000000.0 | |
| Net PPEPurchase And Sale | -18100000.0 | | | | |
| Net Short Term Debt Issuance | 0.0 | 0.0 | 0.0 | | |
| Operating Cash Flow | | 48800000.0 | 132600000.0 | 219500000.0 | 281100000.0 |
| Operating Gains Losses | | -10300000.0 | 4800000.0 | 1100000.0 | 14400000.0 |
| Other Cash Adjustment Outside Changein Cash | 0.0 | | | | |
| Other Non Cash Items | | 21300000.0 | 9000000.0 | 9700000.0 | 13300000.0 |
| Pension And Employee Benefit Expense | | 8800000.0 | 4800000.0 | 1100000.0 | 10100000.0 |
| Proceeds From Stock Option Exercised | | 95400000.0 | 38400000.0 | 49000000.0 | 56600000.0 |
| Provisionand Write Offof Assets | | 1800000.0 | 2200000.0 | 5400000.0 | 10100000.0 |
| Purchase Of Business | | -409500000.0 | 0.0 | 0.0 | -173100000.0 |
| Purchase Of Intangibles | -41700000.0 | | | | |
| Purchase Of Investment | | -763800000.0 | -652800000.0 | -534900000.0 | -557300000.0 |
| Purchase Of PPE | -18100000.0 | | | | |
| Repayment Of Debt | | -302800000.0 | -8400000.0 | -7900000.0 | -648300000.0 |
| Repurchase Of Capital Stock | | | 0.0 | 0.0 | -36100000.0 |
| Sale Of Investment | | 488000000.0 | 404800000.0 | 447500000.0 | 368100000.0 |
| Short Term Debt Issuance | 295000000.0 | 295000000.0 | 0.0 | | |
| Short Term Debt Payments | -295000000.0 | -295000000.0 | 0.0 | | |
| Stock Based Compensation | | 113400000.0 | 144800000.0 | 136700000.0 | 155500000.0 |
